Synthesis, properties and applications of MAX-phase Cr2AlC (overview)

The research of foreign and Russian scientists on obtaining, studying the properties and possible use of one of their promising MAX-phases, Cr2AlC, is summarized. This compound, like all MAX phases, has properties of both metals and ceramics. The MAX phase of Cr2AlC has a relatively low density compared to heat-resistant alloys, high values of thermal and electrical conductivity, strength, increased modulus of elasticity, excellent resistance to high-temperature oxidation and thermal shock, has a high melting point, and is easily machined. This compound is promising for use in protective coatings. It is also a precursor for the production of MXene Cr2CТх (2D molecular compound), which has unique adsorption and catalytic characteristics.